CVE-2022-31623
MEDIUM severity · CVSS 5.5 · CWE-667
5.5CVSS MEDIUM
Summary
MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs (i.e., going to the err label) while executing the method create_worker_threads, the held lock thd->ctrl_mutex is not released correctly, which allows local users to trigger a denial of service due to the deadlock. Note: The vendor argues this is just an improper locking bug and not a vulnerability with adverse effects.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94 ↗
Additional information
- NVD record
- https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94Patch
- https://github.com/MariaDB/server/pull/1938Patch
- https://github.com/MariaDB/server/commit/7c30bc38a588b22b01f11130cfe99e7f36accf94Patch
- https://github.com/MariaDB/server/pull/1938Patch
- https://jira.mariadb.org/browse/MDEV-26561
- https://jira.mariadb.org/browse/MDEV-26574
- https://security.netapp.com/advisory/ntap-20220707-0006/Advisory
- https://jira.mariadb.org/browse/MDEV-26561